Control Logic (Sink/Source) Change - Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual

2.6.2

Control logic (sink/source) change

Switch the control logic of input signals as necessary.
To change the control logic, change the jumper connector position on the control circuit board.
Connect the jumper connector to the connector pin of the desired control logic.
The control logic of input signals is initially set to the sink logic (SINK) for the type FM inverter.
The control logic of input signals is initially set to the source logic (SOURCE) for the type CA inverter.
(The output signals may be used in either the sink or source logic independently of the jumper connector position.)
NOTE
• Make sure that the jumper connector is installed correctly.
• Never change the control logic while power is ON.
• To change the control logic for the FR-A800-GF, remove the control circuit terminal block and change the jumper connector
position. (Refer to
reinstall the control circuit terminal block securely in place.
 Sink logic and source logic
• In the sink logic, a signal turns ON when a current exits from the corresponding signal input terminal.
Terminal SD is common to the contact input signals. Terminal SE is common to the open collector output signals.
• In the source logic, a signal turns ON when a current enters into the corresponding signal input terminal.
Terminal PC is common to the contact input signals. Terminal SE is common to the open collector output signals.
Current flow concerning the input/output signal
when sink logic is selected
Sink logic
Current
Inverter
72
2. INSTALLATION AND WIRING
2.6 Control circuit
page 783 for details on how to remove the terminal block.) After changing the jumper connector position,
STF
R
STR
R
SD
DC input (sink type)
<Example: QX40>
RUN
TB1
R
- TB17
+
SE
24 VDC
Current flow
Jumper connector
Current flow concerning the input/output signal
when source logic is selected
Source logic
Sink
Current
connector
R
SOURCE
SINK
For sink logic
PC
STF
R
STR
R
Inverter
DC input (source type)
<Example: QX80>
TB1
RUN
R
TB18
-
+
SE
24 VDC
Current flow
Source
connector
R